Valve



Nov. 3 1925- 1,560,235

A. O. HINSCH VALVE Filed Jan 5 2 Fig 3,

Patented Nov. 3, 1925. I

UNITED TA E PATENT OFFICE.

o'rro amscn, or sex rnmcisco; cum-cams.

: yawn To all whom it maycmwem:

-Be it known that I,'A1.Bna'i\O'rro Hrnsorr,

a citizen ofthe United States residmg at the city and in the county San Francisco and- State of California, have, invented .certain new and useful Improvements Y in Valves,'of which the following is a specistructur which. a greater number of hours of operava ve and seat structures now universally in use.

Another object is to construct a valve having a plurality of seats in its face enabling an equal raduation of the valve heat reducing the lia ility of the valve to overheat. y A further object is to provide a valve (i and seat structure by the use of tion of a'motor is -possiblelwithout the necessity of stopping the motor for valve grindin purposes. .a Y

The a ove objects are attained by roviding a valve or valve seat face or bot a plurality of circumferential grooves dividing the face or faces into a series of separate faces.

'With the above mentioned and other objects in view, novel construction and comblnation ofparts hereinafter described, illustrated in the accompanying drawings, and set forth in the claims hereto appen ed, it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims ma be resortedto without defparting from t e s irit or sacrificing any 0 invention. r

To comprehend the invention, reference is directed to the accompanying drawings wherein I f Fig. 1 is a vertical sectional viewof the the advantages 0 the upper portion of a cylinder of an internal" exhaust valves in seated will, without with the invention consists in the ,Applleaflenfled January 5, 1985. Berle! No. 552.

combustion engine illustrating the inlet and osition. V Fig. 2 is a view in e evation of a valv .with the head in section illustrating the circumferentia'l grooves in the-peripheral face.

Fig. 3 is a section-alview of a valve openmg i lustrating the circumferential grooves in the wall thereof".

F-i 4 is a view in section through a valve opening illustrating a valve seated therein,

the valve and seat faces; being both circumferentially grooved.

Referring more particularly to the views of the drawings wherein like characters of reference designate corres onding. parts, .1 indicates generally a cylinder of an Internal combustion engine, that form selected for illustrating the invention beingv of the conventional valve in the head type with a re movable head,but it is to be understood that the invention is not confined to this form of engine.

In the cylinder 1 is mounted a piston 2, and communicating with the interior of the cylinder of the inlet ports 3 and the exhaust ports 4 controlled res ectively by the inlet valve 5 and exhaust va ve 6, the valves being seatedby the conventional springs 7, and the stems ,S'ther'eof reciprocatm 1n idesf9.

The valves 5" and 6 have evel ed faces 10, and said faces are divided into a plurality of separate parallel seats 11 by'the circumferential grooves 15 extending in spaced relation about the face 10. This con- 7 struction is clearly illustrated in Fig. 2 and a modification-thereof is set-forth in Fig. 3,-wherein thevalve seat 13 of, the respective openings is divided into a plurality of separate seats 14 by the circumferential grooves 15.

In Fig. seat are provided with registering grooves 16 which afford between them circumferen- J tial opposing separate seats 17 A 7 'By dividing either the valve face or the seat face into a plurality or series of separate circumferential seats, it has been d1scovered thatif products of incomplete combustion, such as particles of carbon, become attached to the valve face, or the valve seat, they are reduced in size bythe cutting edges of the several narrow seats, that the narrow seats offer a greater means for radiation of heat, correspondingly reducing the chances of the" valve. in burning over valves 4, vboth the valve face and its I of the present construction. It has beenfurther discovered that, due to the very highbetween the valve andits seat is precluded due to the fact that .the grooves evidently fill to theircapacity and become packed with carbon which assists in providing what may be termed a soft seat between the-metallic seats formed with the grooves.

1. In combination with a valve v and a valve opening controlled thereby and provided'with co-operating faces, 4 the face of said valve having a groove affording a plurality of separate nonyieldable seats.

2. In 'a valve structure a stem, a non yielding mushroom valve head carried thereby and provided with a bevelled face di-' vid ed circumferentially into a plurality of nonyielding seats by the formation therein of a circumferential groove.

3. In an internal combustion motor, the combination of a nonyielding valve and a circumferential seats.

valve opening, .said valve and opening provided with co-operating nonyielding faces, said valve face being provided witha plurality of peripherally disposed non-yieldqng seats raised from the remainder of the face.

4. In. an internal combustion motor, the combination of a valve and a valve opening, said valve and o ning provided with co-operating nonyielding faces, the face of said valve being provided with a plurality of peripherally. disposed nonyielding seats raised from the remainder of the face and separated by a plurality cating concentric grooves.

5. A valve structure comprising a stem, a nonyielding mushroom head carried thereby and provided with a bevelled face divided circumferentially by a plurality of concentric circumferential noncommunicating grooves-,j intoia plurality of continuous circumferential nonyielding seats.

6.,Ina Tvalve structure, a stem, a metallic mushroom valve head carried thereby of noncommuniand provided with 'a bevelled face, said face having formed therein, between its opposite edges, a circumferential groove dividing the face into a plurality of separate In testimony whereof I have signed my name to' this specification.

ALBERT OTTO HINSOH. 

